html,
body {
  width: 100%;
  height: 100%;
}

body {
  margin: 0px;
  background-color: #fff;
  font-family:
    'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑',
    Arial, sans-serif;
}

.full-width {
  width: 100%;
}
